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A � <br /> GeoAnalytical Laboratories, Inc. <br /> 1405 Kansas Avenue Modesto,CA 95351 Phone (209) 572-0900 Fax (209) 572-0916 <br /> S <br /> k <br /> CERTIFICATE OF ANALYSIS <br /> Report# N100-11 STEX & Gas Date: 4/19/02 <br /> P <br /> Thorpe Oil Date Rec'd: 4/10/02 <br /> P Project: Stockton Fire Station-Sonora St. Date Started: 4/15/02 <br /> PO Box 357 Date Completed:4/15/02 F <br /> r Lodi CA 95241 PO# <br /> Date Sampled: 4/10/02 <br /> Sampler: R.Chrun/R.Azevedo , <br /> Sample ID Lab ID RL Method Analyte Results Units <br /> Stockpile#2 N200892 5.0 8021B Benzene ND pg/Kg <br /> 5.0 Toluene ND pg/Kg. <br /> 5.0 Ethyl Benzene 36 pg/Kg <br /> 5.0 Total Xylenes "-238y' pg/Kg_ <br /> 1.0 5030/LUFT Gasoline 5:7'� mg/Kg <br /> Surrogate Amnt Spiked Arrmt Rec. %Recovery QC Limit% <br /> a,a,a TFT •250 245 98 66-117 <br /> k <br /> Stockpile#3 N200893 5.0 8021B Benzene ND pg%Kg <br /> 5.o Toluene 9.5 pg/Kg <br /> 5.0 Ethyl Benzene ND .- pg/Kg <br /> 5.0 Total Xylenes 9.6 pg/Kg <br /> 1.0 503D <br /> /LUFT Gasoline ND mg/Kg <br /> Surrogate Amnt Spiked Amnt Rec. °/o Recovery QC Limit <br /> a,a,a-TFT 250 237 94,8 66-117 <br /> _ I <br /> Stockpile 44 N200894 5.0 8021 B Benzene ND pg/Kg <br /> 5.0 <br /> Toluene ND pg/Kg <br /> 5.0 Ethyl Benzene ND pg/Kg <br /> 5.0 Total Xylenes ND pg/Kg s <br /> 1.0 5030/LUFT Gasoline ND mg/Kg <br /> Surrogate Amnt Spiked Amnt Rec, %Recovery QC Limit% <br /> a,a,a-TFT 250 231 92.4 66-117 <br /> l <br /> Mario D'Onofrid Donna Keller <br /> Chemist Certification # 1157 Laboratory Director <br /> i <br />